Improvement in pencil-caes



W1LLIAM A. LUDDEN, or BROOKLYN, NEW YORK.

Lettms .Patent No. 92,853, datcd July 20, 1869.

i IMPROVEMENT IN PENciL-cA/sns.

The Schedule referred to in these Letters Patent and making part pf thesame.

To all whom it mayA concern.:

Be it known that I, WILLIAM A. LUDDEN, of Brooklyn, in the county ofKings, and State of New York, have invented and made a. certain new anduseful Improvement iuEXtension Pencil-Cases; and I do hereby declare thefollowing to be a full, clear, and exact description of the saidinvention, reference being had to the annexed drawing, making part ofthis specification, wherein- Figure 1 represents the pencil-case closed;

Figure 2 shows the pencil and case extended, and the exterior barrel ofthe case removed, to show the slotted cylinders; and

Figure 3 is a cross-section of the pencil, showing the cylinders orbarrels thereof'.

Figures 4, 5, 6, and 7, are detached views of parts oi my improvedpencibcase.

All of the figures of the drawing are shown in enlarged size, exceptiig. 1.

Similar marks of reference denote thesame parts.

' The object ot' this invention is to project or retract the case at oneend of thc main case, simultaneously lwith the ever-pointed pencil atthe other end of the case, so that but one movementis required toincrease the length of the case, and to project the pencil..

I accomplish these operations by means oitwo tubes, fitted to'turn, oneou the other, and each provided .with right and left-hand slots,divergiug from nearithe centre oi' the tubes, aud at 4opposite angles,so that a :introduced in the extension portion of the case, isprojectedor retracted at one end of the. case, simultaneously 'with themovement oi' a pin and the pencil at the other end of the case, thecylinders or tubes heilig turned, the one`on or, in the other.

In the, drawiuga is the outer case or tube.

bis the tube nextzwithin the same, land attached thereto.

The tube a should he of gold or 'other ornamental y metal. 'A

The tube bis formed with divergingfor right andleft-handed slots, in aninclined or `screw-form, and c.

is a cylinder or tube within b, in which are similarlyformed slots, butstanding at the opposite angle or inclination, so that the slots crossor intersect each other.

- Within the tube o is the extension-tube or case d," with a pin, 2, inthe slots 3 and 4, and the pencil-pointy sion d will be pulled out andpartially revolved, t0 si-v multaneously project the pencil-point' h atthe other end, or, by the reverse movement, to 'retract the same.

By this construction the case and point are extended or retracted morerapidly, and with less ei'ortt-han `heretofore.

What I claim, and desire to secure by Letters `Pat ent, is-

The tubes b and c, slotted in the manner described, in combination withthe extension-case rl and point h,

